<template>
  <div class="app-container">
    <el-form label-width="120px">
      <el-form-item label="信息描述">
        <el-tag type="info">excel模版说明</el-tag>
        <el-tag>
          <i class="el-icon-download"/>
          <!--可以将文件上传到oss上，填入文件在oss上的地址即可-->
          <!--<a :href="/public/模版.xlsx">点击下载模版</a>-->
        </el-tag>
      </el-form-item>
      <el-form-item label="选择Excel">
        <el-upload
          ref="upload"
          :auto-upload="false"
          :on-success="fileUploadSuccess"
          :on-error="fileUploadError"
          :disabled="importBtnDisabled"
          :limit="1"
          :action="BASE_API+'/eduservice/subject/addSubject'"
          name="file"
          accept=".xls, .xlsx"
        >
          <el-button slot="trigger" size="small" type="primary">选取文件</el-button>
          <el-button
            :loading="loading"
            style="margin-left: 10px;"
            size="small"
            type="success"
            @click="submitUpload"
          >{{ fileUploadBtnText }}
          </el-button>
        </el-upload>
      </el-form-item>
    </el-form>
  </div>
</template>

<script>
export default {
  name: 'Save',
  data() {
    return {
      BASE_API: process.env.VUE_APP_BASE_API, // 接口API地址
      // OSS_PATH: process.env.OSS_PATH, // 阿里云OSS地址
      fileUploadBtnText: '上传到服务器', // 按钮文字
      importBtnDisabled: false, // 按钮是否禁用,
      loading: false

    }
  },
  created() {
  },
  methods: {
    // 上传成功
    fileUploadSuccess(response) {
      if (response.code === 20000) {
        this.$message.success('上传成功～')
        this.loading = false
      }

    },
    // 上传失败
    fileUploadError(response) {
      if (response.code !== 20000){
        this.loading = false
        this.$message.error('上传失败！')
      }

    },

    // 点击提交上传
    submitUpload() {
      this.$refs.upload.submit()
      this.importBtnDisabled = true
      this.loading = true
      // 跳转到课程分类页面
      this.$router.push({ path: '/subject/list' })
    }

  }
}
</script>
<style scoped>

</style>
